Means for and method of coating wall surfaces



March 8, 1938. J B KRlTzER 2,110,335

MEANS FOR AND METHOD OF COATING WALL SURFACES Filed Feb. 5, 1936 E i-Z4 Patented Mar. 8, 1938 UNITED STATES ATENT ()FFHCE MEANS FOR AND METHOD OF COATING WALLISURFAOES John B." Krltzer, Oak Park, Ill. Application February 5, 1936, Serial No. 62,477

5 Claims.

which I am familiar present numerous difficulties and disadvantages. One of the distinct disadvantages of these prior methods has been the use of relatively large, cumbersomeand expensive patterns. It is, therefore, one of the important objects of the present invention to provide inexpensive, light-weight patterns whereby an improved method of marking wall surfaces may be practiced.

More specifically my invention contemplates the use of patterns which are of such weight that they will adhere without additional support to the soft surface of cement, plaster and the like, and thereby enable the user to very expeditiously apply a color to the wall surface not covered by the pattern.

Still another object of the present invention is to provide a pattern which is not only of extremely light-weight, but which may be readily cut to fit any irregularity in the margin of the walls upon which the patterns are used as, for example, the wall areas surrounding doors, windows, be neath eaves, roof edges, etc. To this end my invention contemplates the provision of patterns constructed of thin, light-weight material such as cardboard or other similar flexible material which may be cut to any desired shape so as to conform with the requirements at the place of application.

It is another object of the present invention to provide a pattern which is not only light in weight, inexpensive and easy to cut into various shapes, but also sufficiently flexible so as to be self-conformable to irregularities in the surface contour of the plastic wall to which the pattern is applied in use. Most wall surfaces on the interior and exterior of buildings, for example, arenot perfectly flat and my invention contemplates a pattern which, when placed upon a surface having these irregularities, -is sufficiently flexible to accommodate such irregularities.

The foregoing and numerous other objects and advantages will be more apparent from the following detailed description when considered in connection with the accompanying drawing, wherein:

Figure 1 is an elevational View of a dwelling having the exterior stucco or plastic surface thereof marked in accordance with the teachings of the present invention;

Figure 2 is an enlarged perspective view of one form of pattern which may be used in applying the exterior design to the wall of the dwelling shown in Figure 1;

Figure 3 discloses the manner in which the pattern of Figure 2 may be severed by the use of a pair of shears or other suitable cutting instrument to accommodate irregularities in the margins of the wall as, for example, the angular disposition of the eaves shown in the upper central portion of the roof structure in Figure 1;

Figure 4 discloses a fragmentary portion of the pattern of Figure 2 applied to a fragmentary portion of a cement or plaster wall such as the stucco wall of the dwelling of Figure 1, said application being made while the wall surface is still soft or impressionable;

Figure 5 is a fragmentary enlarged sectional View of the wall and pattern taken substantially along the line 55 of Figure 4;

Figure 6 discloses the wall and pattern of Figure 4 after a coating of desired color has been applied thereto;

Figure 7 is a fragmentary sectional view similar to Figure 5 taken substantially along the line l? of Figure 6;

Figure 8 discloses the appearance of the Wall structure of Figures 6 and 7 after the pattern has been removed, and

Figure 9 is an enlarged fragmentary sectional view taken substantially along the line 9-9 of Figure 9, the detached pattern structure being shown in its removed position.

Referring now to the drawing more in detail wherein like numerals have been employed to designate similar parts throughout the various figures, it will be seen that my invention contemplates the use of a panel or pattern, one embodiment of which is designated generally by the numeral It in Figure 2. Obviously my invention is in no sense limited to the particular design or pattern shown in the drawing, but contemplates any exterior or interior wall design or pattern which the environment may require. This pattern or panel ill is preferably made of very light flexible sheet material as, for example, pressed paper, cardboard or other suitable thin, lightweight, fiexible material. I prefer to have the surfaces of the pattern It] coatedor impregnated with a suitable waxy or parafiine substance which serves to materially reduce the affinity of the pattern or stencil surface for such substances as cement, plaster and the like.

In practicing my improved method by the use.

of the pattern I0, the surface of the dwelling or; other structure is first provided with a coating I! of any suitable cement or plaster material.

Obviously for exterior use cement or stucco is T -commonly employed, whereas for interior sur-- faces a plaster material may be preferable. ,Before the coating I! has completelyset and while it is still in a plastic or impressionable. state. the" pattern or stencil I0 is lightly pressed against the exterior surface of the coating 12. The affinity of the impressionable wall surface for the pattern I0 is sufiicient to sustain the weight of plied thereto. w

Following the application of the panel to the wall surface, as shown in'Figures 4 and 5, a second coating I4 of any selected 'color is applied to the exterior of the panel and the exterior of the coating l2 as clearly shown in Figures 6 and 7.

The panel. or stencil I0 is then removed, as

shown in Figures 8 and 9, so as to present a pattern on the wall surface conforming with the pattern I. Thus the color of the pattern is similar to the'color of the exterior of the coating I2,

the colo r'of the remaining portion of the wall depending upon the color of the coating I4.

Attention is directed to-the fact that the stencil lll'isnot only of light weight, but is sufficiently flexible so as to enable it to be self-conformable to any variations in the contour of the coating l2.. Most wall surfaces, whether interior or exterior, have a certain amount of surface irregularity and thus if the panel or stencil 'llliwere constructed of metal or other similar stifi -material, .it would not only be too heavy, but would not be-self-conformable to these surface variations or irregularities. It is, therefore, of the utmost importance to form the panel ill of light, flexible material.

In Figure 3 I have shown the manner in which the panel l0 may be cut into any desired shape to meet the needs incident to the use thereof. It will be apparent that when a pattern or design is to be provided along the margin of 'a sloping eave, the pattern must conform with the eavev portion ofthe wall margin and then thrown away.

This type of stencil and method of marking should be compared with the relatively expensive methods which employ steel patterns and the like which are very cumbersome to handle, are not self-conformable to the wall surface and cannot be shaped to fit odd sizes and marginal contours.

In the use of these heavy steel patterns, one

must employ a specially shaped pattern for each unusually shaped wall area as compared with the present invention which contemplates .a stencil or panel which is so inexpensive and easy to be cut that any marginal irregularity of a wall surface may beaccommodated with no loss of time and without any additional expense.

ployedfor any wall surface which is sufllciently.

impressionable to receive the stencil. Thelmpregnation or coating of the waxy substance upon the exterior of the stencil enables it to be 'removed without carrying with it any of the cementor plaster coating, and thereby enables a design having clear and distinct lines of demarcation'to be produced.

Ha ving thus described my invention, what I ,claim' as new and desire to secure by Letters Patent is:

1. The method of marking a wall surface which consists in embedding in a coating of impressionable material a panel of thin, light-weight,

. flexible stock forming a pattern, then applying. a coating to the portion of the impressionable coating" not covered by the panel, and then re moving the panel from said impressionable coating so as to present a design having clear lines of demarcation;

consists in partially embedding in a coating of impressionable material a panel of thin, lightweight, flexible stock forming a pattern, retaining saidpanel in position by the adhesiveness of the impressionable material, then applying a coating to the portion of the impressionable coating not covered by the panel, and then reing a waxy surface, then applying a coating to the portion of the impressionable coating not covered by the panel, and then removing the panel from said impressionable coating so as to present a design having clear lines of demarcation. 1 I

' 4. The method of marking an impressionable wall surfacehaving a predetermined marginal shape, which consists in selecting a relatively thin, light-weight, flexible panel having the required design, cutting said panel to conform with the predetermined marginal shape of the wall surface, partially embedding said panel in the impressionable surface, applying a coating of selected color to the area of said impressionable surfacenot covered by the panel, and then removing the panel so as to produce a wall surface having slightly recessed uncolored portions outliningfcolored portions conforming to the panel designa r 5. The method of marking an impressionable wall surface which consists in embedding in said impressionable surface a relatively thin, light-- weight, flexible panel of selected design, applying a coating of selected color to the wall area not covered by the panel, removing said panel so asto present a design having sharp lines of demarcation, and repeating the above mentioned steps in connection with the remaining area of, the wall surface until said entire surface has 

